S97E00831

Janice E. Voss, payload commander, drives an M-113 rescue vehicle during training that is part of the Terminal Countdown Demonstration Test (TCDT) exercises at the Kennedy Space Center (KSC) for Shuttle flight crews prior to their STS-83 mission. KSC instructor George Hoggard rides on the front of the tracked vehicle, while other members of the crew are aboard with other KSC personnel. The STS-83 mission was cut short due to a fuel cell problem, the crew is flying again for the STS-94 Microgravity Science Laboratory - 1 (MSL-1) mission.